Issues regarding the supervision and inspection of pressure vessels
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Do the heat tracing coils of pressure vessels require supervised hydrostatic testing? Everyone is welcome to discuss and share their opinions
If the diameter is 150 mm or greater, supervision and inspection are required; otherwise, they are not necessary
Only when the inner diameter is greater than 150 mm is it subject to regulation by fixed dimension gauges
Only those with an inner diameter greater than 150 MM fall under the regulatory scope of the fixed capacity gauge
I think if it’s a problem with the device itself, then it definitely needs to be checked； If it is not necessary to consult the catalog of special equipment to determine whether it falls under the category of pressure pipelines, then inspection is required if it does
A hydrostatic test should be carried out, and it is also advisable to conduct magnetic particle testing on the welds, as these pipes are often enclosed in insulation jackets; if there is a leak after they are completed, it becomes very difficult and troublesome to locate the source of the leak, so it is essential to ensure the quality of the welds.